And here's another multi-axis hitch: The Max Coupler. I almost went this route before going with the pintle hitch set-up.
I did a good bit of research on this before taking my Jeep and trailer to Alaska. The first hitch I found was the lock-n-roll. But if you do a good google search on it, you'll find a lot of folks have gone away from it. Seems like the main problem was in backing up with them off-road (they bend and get distorted). Now it might not be a problem with our lighter-weight trailers (the folks having problems were pulling heavy duty off-road trailers), but still people were going away from them and going to the max-coupler. And I can't find out how much they're going for (damn government computer site-blockers) to compare them to the max-coupler.
So from the lock-n-roll I looked at the max-coupler. They've got a "new and improved" model out, and this was the hitch most were recommending. The only issue I found in my research was you had to have the trailer and tow vehicle lined up just right to get everything connected. If you're connecting everything and leaving it connected your whole trip then it's not an issues. If you're doing a lot of connecting and disconnecting it's still just a minor issue, but it was brought up. The company was going to give me a military discount which would have brought the price to around $200. I was almost ready to pull the trigger. But it was still $200.
The Oz Hitch ain't cheap, and I don't even know if they sell it here in the states (they're in Australia). So I didn't really do that much research on it. But hey; if you want to be different... go for it and let us know how it works out.
And jscherb has posted elsewhere a "build it yourself" multi-axis hitch from parts gathered at TSC. The parts come in under $100, and if you can do some welding and grinding and fabricating you've got yourself a nice little multi-axis hitch. Too bad I don't own a welder.
I already had the pintle hitch and the 2" receiver mount thing. I already had the 2" receiver thing made and mounted on the trailer tongue (which you would need anyway for either the lock-n-roll or the max-coupler). So I went the cheap(er) route and bought a lunette ring ($20-something) that slid into the trailer's 2" receiver and called it done. I've been very happy with it, and connecting and disconnecting is easy - you just have to get it close and then close the pintle hitch jaws on the lunette ring. Pintle hitches run around $50 or so, and you'll have to google 2" receiver/pintle hitch adapter mounts (they're easy to find - lots of options).
Just tossing other options out there.